超声回弹综合法在橡胶混凝土中应用试验研究

Experimental study on the application of ultrasonic-rebound combined method in crumb rubber concrete

利用无损检测技术中的超声回弹综合法对具有不同粒径、不同掺量橡胶粉的混凝土标准立方体试块进行了超声波和回弹测试,并进行了抗压强度试验。研究结果表明:橡胶粉的粒径和掺量变化,对橡胶混凝土的超声波声速、回弹值、立方体抗压强度和破坏形态的影响比较明显。

Based on the technique of nondestructive test of ultrasonic-rebound combined method,the ultrasonic velocity,the rebound value and the compressive strength of crumb rubber concrete filled with different sizes and amount of rubber particles are measured.The test results show that the influence of crumb rubber size and content on ultrasonic velocity,rebound value,compressive strength and failure mode is obvious.